PTVS3-380C-TH Circuit Protection

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• PTVS3-380C-TH Application Field and Working Principle

  The Transient Voltage Suppressor (TVS) diode PTVS3-380C-TH is an integrated device designed to protect electrical components against electrostatic discharges, high voltage pulses and electrical overstress. It is a low-power, high-temperature, surge-proof device, suitable for surface mount and through-hole use. The device is designed to work at its optimal level in a wide range of situations and electrical applications including low-voltage and high-frequency applications. This article discusses the application fields and working principle of the PTVS3-380C-TH TVS diode.

  Application Fields

  The PTVS3-380C-TH is designed to protect electronic devices against high voltage and electrical overstressing. It is suitable for many applications due to its rugged housing, low current leakage, wide range operating voltage and high peak current capability. The device can be used in a variety of situations and applications including overvoltage protection for power supplies, wireless communication systems, high-voltage applications, and lightning protection. The device can also be used in devices with LCDs, optical sensors and liquid crystal displays.

  Working Principle

  When a voltage higher than the peak working voltage is applied to the PTVS3-380C-TH, the device conducts the current without clamping the voltage and reduces the current. This is done by a Zener-diode junction. This junction contains holes and electrons, which conduct to and from the junction in case of a high voltage. When the voltage reaches the specified peak voltage, the flow of holes and electrons is stopped, and the device clamps the voltage and prevents a voltage surge. This process is known as dynamic clamping.

  When the voltage comes back to the normal working range, the Zener diode junction turns off and the current flows through the device in the reverse direction. This allows the device to recover after a voltage surge and protect the electronic components against further overvoltage. The device\'s dynamic clamping capability ensures that it can protect the electronic components even in a low-voltage and high-frequency situations.

  Conclusion

  The PTVS3-380C-TH is a low-power, high-temperature, surge-proof device suitable for many applications. The device provides protection against electrostatic discharges, high voltage pulses and electrical overstress. The device\'s working principle is based on a Zener-diode junction, which conducts when a high voltage is applied and clamps the voltage when it reaches the specified peak voltage. This allows the device to recover after a voltage surge and protect the electronic components from further overvoltage.

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